Exploring the concept of speed. Students will realise that speed is made up of two measurements, one of distance travelled, and one of time taken. These two measurements can be used to calculate speed, which can be converted to different units.
L.I. Students will be able to 1. use appropriate scales, devices & metric units for length, area, volume & capacity, weight (mass), temperature, angle and time. 2. convert between metric units, using whole numbers and commonly used decimals. 3. use a range of multiplicative strategies when operating on whole numbers.S.C. We will
calculate speed from measured distance and time
solve multiplication problems using doubling and halving strategies
use know multiplication facts to solve multiplication problems
(nzmaths.co.nz)
Tuesday 29 March 2011
My Estimation for running km per hour
10 km per hour
After the test I discovered that I can run 12 km per hour
Wednesday 30 March 2011
Time taken 100m = 18 seconds
19x10=190
190÷60=3.16
60÷3.16=18km per hour
Thursday 31 March 2011
1• What speed can a student travel on bike.
Estimation 25km per hour
Actual 20km per hour
60÷3=20
2• How many meters per second can a student travel be bike?
Estimation 5 meters per second
Actual
3 minutes to seconds = 180
1000 ÷180=5.5 meters per second
Reflection
I now know how to turn minutes in to kilometers and how many seconds per minute. I still find it a bit tricky but I have to think really hard about it other wise I have know clue whats going on or I get stuck on the question and that's when I found it really hard. The figure it out book was really hard and to be honest I really didn't get it at all and it was so hard and it made no sense.
Friday 1 April 2011
100 m
Men - 9.58 Usain Bolt
Woman - 10.49 Florence Griffith Jayner
Exploring the concept of speed. Students will realise that speed is made up of two measurements, one of distance travelled, and one of time taken. These two measurements can be used to calculate speed, which can be converted to different units.
L.I. Students will be able to
1. use appropriate scales, devices & metric units for length, area, volume & capacity, weight (mass), temperature, angle and time.
2. convert between metric units, using whole numbers and commonly used decimals.
3. use a range of multiplicative strategies when operating on whole numbers.S.C. We will
- calculate speed from measured distance and time
- solve multiplication problems using doubling and halving strategies
- use know multiplication facts to solve multiplication problems
(nzmaths.co.nz)Tuesday 29 March 2011
My Estimation for running km per hour
10 km per hour
After the test I discovered that I can run 12 km per hour
Wednesday 30 March 2011
Time taken 100m = 18 seconds
19x10=190
190÷60=3.16
60÷3.16=18km per hour
Thursday 31 March 2011
1• What speed can a student travel on bike.
Estimation 25km per hour
Actual 20km per hour
60÷3=20
2• How many meters per second can a student travel be bike?
Estimation 5 meters per second
Actual
3 minutes to seconds = 180
1000 ÷180=5.5 meters per second
Reflection
I now know how to turn minutes in to kilometers and how many seconds per minute. I still find it a bit tricky but I have to think really hard about it other wise I have know clue whats going on or I get stuck on the question and that's when I found it really hard. The figure it out book was really hard and to be honest I really didn't get it at all and it was so hard and it made no sense.
Friday 1 April 2011
100 m
Men - 9.58 Usain Bolt
Woman - 10.49 Florence Griffith Jayner
200m
Men - 19.19 Usain Bolt
Woman - 21.34 Florence Griffith Jayner
1km
Men - 58.875 Arnaud Tourant
500m
Woman - 34 Anna Meares
How many km per hour
100m
Men - 44 km per hour
Woman - 41 km per hour
200m
Men - 44 km per hour
Woman - 41 km per hour
500m
Woman - 55.55 km per hour
1km
Men - 61.2 km per hour
Meters Per second
100km
Men - 10.43 per second
Woman - 9.53 per second
200km
Men - 10.42 per second
Woman - 9.37 per second
500m
Woman - 14.7m per second
1km
Men - 68.87 m per second